//
//  IMPMainTabBar.swift
//  MySina
//
//  Created by imppppp on 16/5/20.
//  Copyright © 2016年 IMP. All rights reserved.
//

import UIKit

class IMPMainTabBar: UITabBar {
    
    override init(frame: CGRect) {
        
        super.init(frame: frame)
        addSubview(plusBtn)
        
//        self.backgroundImage = UIImage(named: "tabbar_background")
        
    }
    
    required init?(coder aDecoder: NSCoder) {
        //        super.init(coder: aDecoder)
        fatalError("init(coder:) has not been implemented")
    }
    
    
    
    // 布局子控件
    override func layoutSubviews() {
        
        super.layoutSubviews()
        
        let width = ScreenWidth / 5
        let height = self.bounds.height
        
        let rect = CGRect(x: 0, y: 0, width: width, height: height)
        
        var index: CGFloat = 0
        for subView in subviews {
            
            if subView.isKindOfClass(NSClassFromString("UITabBarButton")!) {
                
                subView.frame = CGRectOffset(rect, index * width, 0)
                index += (index == 1 ? 2 : 1)
            }
        }
        
        plusBtn.frame = CGRectOffset(rect, width * 2, 0)
        plusBtn.addTarget(self, action: #selector(IMPMainTabBar.plusBtnClick), forControlEvents: .TouchUpInside)
    }
    
    @objc private func plusBtnClick(){
        
        print("123")
    }
    
    lazy var plusBtn:UIButton = {
        
        let btn = UIButton()
        btn.setImage(UIImage(named: "tabbar_compose_icon_add"), forState: .Normal)
        btn.setImage(UIImage(named: "tabbar_compose_icon_add_highlighted"), forState: .Highlighted)
        
        btn.setBackgroundImage(UIImage(named: "tabbar_compose_button"), forState: .Normal)
        btn.setBackgroundImage(UIImage(named: "tabbar_compose_button_highlighted"), forState: .Highlighted)
        
        return btn
    }()
}
